Micrometer head



FIG. 1 is a front elevational view of a micrometer head showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is an inverted rear elevational view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof. 

The ornamental design for a micrometer head, as shown. 